74855 20190930125518.0 doi 10.1016/j.memsci.2017.09.009 sideral 101561 ART-2017-101561 eng (orcid)0000-0002-0157-9507 Perea-Cachero, Adelaida Universidad de Zaragoza A new zeolitic hydroxymethylimidazolate material and its use in mixed matrix membranes based on 6FDA-DAM for gas separation 2017 Access copy available to the general public Unrestricted The new ZIF named UZAR-S13 is formed by Zn2+ and 4(5)-(hydroxymethyl)imidazolate. UZAR-S13 has two distinct phases according to SEM and XRD: amorphous spheres and sheet crystals. UZAR-S13 and byproducts, with no N2 adsorption, rendered a notable CO2 uptake (up to 3.8 mmol g-1 at 30 bar and 0 °C), approaching values of known ZIFs. The most promising materials were included as fillers in mixed matrix membranes based on copolyimide 6FDA-DAM to study the separation of CO2/CH4, CO2/N2, H2/CO2 and H2/CH4 mixtures. The pore blocking hindered the gas flow of bulky molecules (CH4, N2 and CO2). The high CO2 adsorption on sheet crystals also contributed to the decrease in the permeability of CH4, N2 and CO2, giving poor selectivities. In contrast, the MMMs improved both the H2/CH4 selectivity (8.9–12.7 vs. 7.2) and permeability of H2 (544–597 vs. 505 Barrer) of the bare 6FDA-DAM membrane. This emphasizes the potential application of the fillers in the separation by molecular sieving of gas mixtures without CO2. info:eu-repo/grantAgreement/ES/DGA/T05 info:eu-repo/grantAgreement/ES/MINECO/CTQ2015-66080-R info:eu-repo/grantAgreement/ES/MINECO/MAT2013-40566-R info:eu-repo/grantAgreement/ES/MINECO/MAT2016-77290-R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 6.578 2017 POLYMER SCIENCE 3 / 87 = 0.034 2017 Q1 T1 ENGINEERING, CHEMICAL 9 / 137 = 0.066 2017 Q1 T1 2.4 2017 Biochemistry 2017 Q1 Physical and Theoretical Chemistry 2017 Q1 Materials Science (miscellaneous) 2017 Q1 Filtration and Separation 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0001-6627-0079 Sánchez-Laínez, Javier Universidad de Zaragoza Berenguer-Murcia, Ángel Cazorla-Amorós, Diego (orcid)0000-0002-4954-1188 Téllez, Carlos Universidad de Zaragoza (orcid)0000-0003-1512-4500 Coronas, Joaquín Universidad de Zaragoza 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 544 (2017), 88-97 J. membr. sci. JOURNAL OF MEMBRANE SCIENCE 0376-7388 988977 http://zaguan.unizar.es/record/74855/files/texto_completo.pdf Postprint 58542 http://zaguan.unizar.es/record/74855/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:74855 articulos driver 2019-09-30-12:51:42 ARTICLE